Vehicle top unit



FIG. 1 is a rear perspective view of a vehicle top unit showing my new design, it being understood that the broken lines are for illustrative purposes only;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof.

The front of the vehicle top unit is understood to be open. 

The ornamental design for a vehicle top unit, as shown and described. 